music_SNR_gujiwucha

Active filter and control strategies

说明：  设计产生一个连续信号，包含低频，中频，高频分量，对其进行采样，进行频谱分析，使用矩形窗设计不同特性的数字滤波器对信号进行滤波处理，分析所设计滤波器(画出了频率特性曲线)，并对信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，同时设计出了一个友好的人机交互界面。(Designed to produce a continuous signal, including low frequency, medium frequency, high frequency components, its sampling, spectral analysis, using rectangular windows of different characteristics of digital filter design the signal filtering, analysis of the designed filter (to draw the frequency characteristic curve), and signal filtering, to draw the filtered signal in time domain waveforms and frequency spectrum, and filtering the signal before and after comparison, the mean time, a friendly interactive interface.)

三次样条插值函数：自己编写的三次样条插值函数(cubic spline interpolation)

提取子波代码研究. Wavelet extraction.(Wavelet extraction.)

This paper focuses on a Matlab/SIMULINK model of a photovoltaic cell. This model is based on mathematical equations and is described through an equivalent circuit including a photocurrent source, a diode, a series resistor and a shunt resistor. The developed model allows the prediction of PV cell behaviour under different physical and environmental parameters. The model can also be used to extract the physical parameters for a given solar PV cell as a function of temperature and solar radiation. In addition, this study outlines the working principle of PV module as well as PV array. In order to validate the developed model, an experimental test bench was built and the obtained results exhibited a good agreement with the simulation ones.

说明：  双环控制，直流母线电压外环，电感电流内环预测控制，3kW光伏并网系统，无升压电路，增量电导法，逆变桥控制最大功率追踪，亲测可用。(DC bus voltage outer loop, inductance current inner loop, 3KW photovoltaic grid connected system, no boost circuit, incremental conductance method, inverter bridge control maximum power tracking, available for pro test.)

matlab中计算Lyapunov指数的程序(matlab program to calculate the Lyapunov exponent)

hfss与matlab联合仿真程序，放在toolbox里面，然后更新路径(hfss and matlab co-simulation program, on the toolbox inside, and then update the path)

说明：  批量读取JRA55数据，并循环将其插值到站点数据(Read jra55 data in batch and interpolate it to site data circularly)

说明：  该程序基于BP神经网络编程，开发工具MATLAB用于预测(The program based on BP neural network programming, development tools, MATLAB used to predict)